201395439

素因数分解:

$3^2\times 7^2\times {\mathrm{456679}}^1$

素因数の和:456699

約数の個数: 18

約数和(自身を含む): 338399880

約数和(自身を除く): 137004441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 456679, 1370037, 3196753, 4110111, 9590259, 22377271, 28770777, 67131813, 201395439]

約数ペア:

[(1, 201395439), (3, 67131813), (7, 28770777), (9, 22377271), (21, 9590259), (49, 4110111), (63, 3196753), (147, 1370037), (441, 456679)]